Dr. Klees is a retiree from the World Bank (2008), is an environmental engineer with over twenty five years of international development experience in the water, sanitation and environment sectors. She has a BA in Mathematics, a MA in Social Work, and a MS and PhD in Environmental Engineering from CU. Prior to joining the World Bank, Dr. Klees worked for USAID as a technical advisor to the Water and Sanitation for Health (WASH) project, and for CH2MHill, International, as Director of Technology for the USAID Environmental Policy and Technology Project. She is currently a Senior Research Associate in the Department of Civil, Environmental, and Architectural Engineering at CU; an Adjunct Professor in the Mortenson Center for Engineering in Developing Communities; and a Lecturer in the Social Entrepreneurship for Equitable and Sustainable Development Resident Academic Program. She teaches graduate and undergraduate courses including: Global Issues in Water Supply; Hygiene and Sanitation; Engineering and Development; and Social Entrepreneurship and Sustainable Development. She maintains a consulting practice with recent assignments for the Millennium Challenge Corporation and USAID.